Ros Clubb, Marcus Rowcliffe, Phyllis Lee, Khyne U. Mar, Cynthia Moss, Georgia J. Mason. 2008. Compromised Survivorship in Zoo Elephants. SCIENCE VOL 322, 12 DECEMBER 2008, www.sciencemag.org.
RSPCA 2003. A Review of the welfare of zoo elephants in Europe
Poole, J and Granli, P. 2008. Mind and Movement: Meeting the Interests of Elephants. In: An Elephant in the Room: The Science and Well Being of Elephants in Captivity. Eds. D. L. Forthman, L. F. Kane and P. Waldau. North Grafton MA: Tufts University Cummings School of Veterinary Medicine’s Center for Animals and Public Policy.
National norms and standards for the management of elephants in South Africa. Published in the Government Gazette on 29 February 2008 and effective on 1 May 2008.
Kiiru, W. 2007. The sad state of elephants in zoos in Canada. ZooCheck, Canada. January 2007.
The report of the Elephant Task Force, Ministry of Environment and Forests, August 21, 2010.
ElephantVoices Advocacy Policy
Elephant polo: conservation activity or animal abuse? By Shubhobroto Ghosh. In Monsoon 2010, COMPASSIONATE FRIEND.
Marino, Lori; Lilienfeld, Scott O.; Malamud, Randy; Nobis, Nathan; Broglio, Ron. 2010. Do Zoos and Aquariums Promote Attitude Change in Visitors? A Critical Evaluation of the American Zoo and Aquarium Study. Society and Animals, Volume 18, Number 2, 2010, pp. 126-138(13)